PROTECTION SWITCHING METHOD, NETWORK DEVICE, AND S

专利名称：PROTECTION SWITCHING METHOD,

NETWORK DEVICE, AND SYSTEM

发明人：HUANG, Jing,ZHA, Min,ZHONG, Qiwen申请号：EP17875835.5申请日：20170920公开号：EP3537670A1公开日：20190911

专利附图：

摘要：A protection switching method and system, and a network device are disclosed,and relate to the field of communications technologies. The method includes: if n linkscarrying a client service are unavailable in a FlexE link group, selecting, by a first network

device from other links than the n links in the FlexE link group, at least one link as aprotection link; sending, by the first network device, a calendar request to a secondnetwork device over the protection link; and receiving, by the first network device, acalendar acknowledge sent by the second network device over the protection link, andswitching the client service, transmitted over the n links, to the protection link fortransmission. In the present invention, an application requirement of the FlexE for

protection switching is satisfied. In addition, because a dedicated link does not need to bereserved in a FlexE link group to serve as a protection link, use of a manner of selectingthe protection link as required can effectively avoid a resource waste, thereby saving abandwidth resource.

申请人：Huawei Technologies Co., Ltd.

地址：Huawei Administration Building Bantian Longgang District Shenzhen,Guangdong 518129 CN

国籍：CN

代理机构：Maiwald Patent- und Rechtsanwaltsgesellschaft mbH

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